This code is a pared-down version of some web scraping to isolate errors
I'm experiencing in a minimal implementation. I've narrowed it down to the
difference between doing Navigator.$(selector) and $(full selector).
import geb.Browser
System.setProperty("webdriver.chrome.driver",
'c:\\webdrivers\\chromedriver.exe')
Browser.drive {
go "https://www.uline.com/Product/GuidedNav?t=184360&dup=over"; // direct to
Shipping Boxes
assert title == 'ULINE - Shipping Boxes'
while (true) {
def table = $('table.GNItemTable')
assert table!=null && table.size()>0
// def theader = table.$('thead tr th') // usually fails after one page
def theader = $('table.GNItemTable thead tr th') // never fails
def next = $('a.EnabledLink', text: 'Next>')
if (next == null || next.size() == 0) break;
next[0].click()
}
}
When I use method chaining; table.$('thead tr th') the code will fail with an
ElementReferenceException usually on loading 2nd page. When I use the full
selector $('table.GNItemTable thead tr th') it runs consistently flawless.
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